Abstract
A series of acyclic polyethers bearing thioamide end-groups and lipophilic alkyl chains were successfully synthesized with moderate yields. Transport measurements in a bulk liquid membrane (BLM) system indicated a very high selectivity of silver ion over other metal cations. Thermodynamic parameters (ΔH, TΔS, and log K) for ligand-metal ion complexations were determined by solution calorimetric titration in methanol at 25 °C. The complexations were enthalpy driven and silver ion exhibited a high selectivity over other metal ions due to the increase of covalent binding between the soft acid (Ag+) and soft base (sulfur).
Original language | English |
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Pages (from-to) | 321-330 |
Number of pages | 10 |
Journal | Journal of Inclusion Phenomena |
Volume | 34 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1999 Jul |
Externally published | Yes |
Keywords
- Complexation
- Ion selectivity
- Polyether
- Thermodynamic parameter
- Thioamides
- Transport
ASJC Scopus subject areas
- Food Science
- Chemistry(all)
- Condensed Matter Physics